请问如何设置APP为安卓桌面APP？AndroidManifest.xml没有效果

设置了AndroidManifest.xml ，没有效果

<?xml version="1.0" encoding="utf-8"?>  
<manifest xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" package="com.dcloud.sample">  
  <application android:allowBackup="true" android:allowClearUserData="true" android:icon="@drawable/icon" android:label="@string/app_name" android:largeHeap="true" android:persistent="true" android:supportsRtl="true">  
    <activity android:name="io.dcloud.PandoraEntry" android:configChanges="orientation|keyboardHidden|screenSize|mcc|mnc|fontScale" android:hardwareAccelerated="true" android:screenOrientation="user" android:theme="@style/TranslucentTheme" android:windowSoftInputMode="adjustResize">  
      <intent-filter>  
        <action android:name="android.intent.action.MAIN" />  
        <category android:name="android.intent.category.HOME" />  
        <category android:name="android.intent.category.DEFAULT" />  
        <category android:name="android.intent.category.LAUNCHER" />  
      </intent-filter>  
    </activity>  
  </application>  
</manifest>

桌面APP不是桌面快捷方式，如图：